EP0699231A1 - Bleich- und desinfektionsmittel - Google Patents
Bleich- und desinfektionsmittelInfo
- Publication number
- EP0699231A1 EP0699231A1 EP94917599A EP94917599A EP0699231A1 EP 0699231 A1 EP0699231 A1 EP 0699231A1 EP 94917599 A EP94917599 A EP 94917599A EP 94917599 A EP94917599 A EP 94917599A EP 0699231 A1 EP0699231 A1 EP 0699231A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- activator
- mixtures
- group
- weight
- compound
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/39—Organic or inorganic per-compounds
- C11D3/3902—Organic or inorganic per-compounds combined with specific additives
- C11D3/3905—Bleach activators or bleach catalysts
- C11D3/3935—Bleach activators or bleach catalysts granulated, coated or protected
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D11/00—Special methods for preparing compositions containing mixtures of detergents
- C11D11/0082—Special methods for preparing compositions containing mixtures of detergents one or more of the detergent ingredients being in a liquefied state, e.g. slurry, paste or melt, and the process resulting in solid detergent particles such as granules, powders or beads
- C11D11/0088—Special methods for preparing compositions containing mixtures of detergents one or more of the detergent ingredients being in a liquefied state, e.g. slurry, paste or melt, and the process resulting in solid detergent particles such as granules, powders or beads the liquefied ingredients being sprayed or adsorbed onto solid particles
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/39—Organic or inorganic per-compounds
- C11D3/3902—Organic or inorganic per-compounds combined with specific additives
- C11D3/3905—Bleach activators or bleach catalysts
- C11D3/3907—Organic compounds
Definitions
- the present invention relates to an agent which contains inorganic perverbin ⁇ compound and an activator for this per compound and which can be used in an aqueous solution for bleaching and disinfecting a wide variety of materials, but is preferably used for treating textiles.
- Inorganic per-compounds such as sodium perborate and sodium carbonate, which release hydrogen peroxide when dissolved in water, only have sufficient bleaching and disinfection activity in diluted aqueous solution, just like the hydrogen peroxide itself, above about 80 ° C.
- activators are generally N-acyl or O-acyl compounds which react in aqueous solution with hydrogen peroxide to give percarboxylic acids, which are then to be regarded as the actual active substances. Accordingly, agents have been proposed for use at low temperatures, which essentially consist of a combination of inorganic per-compound and suitable activator, optionally together with other hoof and additives.
- European patent applications 268170 and 427314 are to be mentioned here, for example.
- the organic compounds used as activators are often not sufficiently stable in the presence of the inorganic per-compounds or other alkalis, they are generally used in granulated or coated form in these agents.
- the proposals for protecting the activator substances during storage are extremely numerous and range from coating the activator material with molten fatty acids and cooling the drops formed, to producing finely divided extrudates consisting of mixtures of activators and wax-like hydrophobic materials, to towards the compact Formation of mixtures of activators and coating substances between rollers and subsequent comminution of the slug.
- the agglomeration of finely divided activator material with the aid of water-soluble or alkali-soluble polymer compounds has gained particular importance because the granules produced in this way have good storage stability on the one hand, but their solubility is practically not impaired on the other hand.
- the invention relates to a granular bleaching and disinfecting agent which contains an inorganic per compound, a granulated activator and a carrier material, the activator granules contained by agglomeration of finely divided activator material (a) with the aid of water- or alkali-soluble polymers (b) im Ratio of a: b greater than 90:10 and before mixing with the inorganic compound and the carrier material with an organic compound from the group of non-ionic surfactants, long-chain alcohols, polyethylene glycols melting between 30 and 100 ° C. Fatty acids, waxes and their mixtures was sprayed.
- the activator granules preferably contain 1 to 25% by weight, in particular 2 to 10% by weight, of the organic compound melting between 30 and 100 ° C.
- the extremely simple measure of spraying with these low-melting organic compounds surprisingly reduces the tendency of the granular bleaching and disinfecting agents to separate during transport. Even in vibratory tests that go far beyond the level of stress that usually occurs during transport, a largely homogeneous distribution of the activator granules remains on average. Since the reasons which are decisive for this unusual result are not known in detail, a description of the constituents of the agent according to the invention and of the method by which it is produced is given below.
- bleach activators or perborate activators are acylating agents which are capable of acylating hydrogen peroxide to peroxycarboxylic acids in dilute aqueous solution.
- activators are suitable for the agents according to the invention insofar as they are compounds which are present in the solid state at the usual storage temperatures of bleaching and disinfecting agents.
- Tetraacetylethylenediamine (TAED), pentaacetylglucose and 1,5-diacetylhexahydro-1,3,5-triazine-2,4-dione are particularly preferred.
- TAED Tetraacetylethylenediamine
- pentaacetylglucose and 1,5-diacetylhexahydro-1,3,5-triazine-2,4-dione are particularly preferred.
- TAED Tetraacetylethylenediamine
- polymers are used which are soluble in water or in a weakly alkaline aqueous medium.
- Natural polymers such as starch or other carbohydrates, as well as chemically modified carbohydrates and fully synthetic polymers are suitable.
- modified polymers based on carbohydrates are cellulose and starch ethers, such as, for example, methyl cellulose, ethyl cellulose, hydroxyethyl cellulose, methyl hydroxyethyl cellulose, Methyl hydroxypropyl cellulose, carboxymethyl cellulose (as sodium salt), methyl carboxymethyl cellulose (sodium salt), carboxy ethyl starch, hydroxyethyl starch and methyl starch.
- ethers sodium carboxymethyl cellulose has proven to be particularly suitable.
- Polymers and copolymers of olefinically unsaturated carboxylic acids in particular acrylic acid, methacrylic acid and maleic acid or their salts, can be used as synthetic polymers.
- copolymers can consist exclusively of olefinically unsaturated carboxylic acids or, in addition to olefinically unsaturated carboxylic acids, can also contain nonionic monomers, such as, for example, vinyl ethers, vinyl esters, amides of olefinically unsaturated acids and olefins.
- water-soluble polymers with a carbon chain for example partially saponified polyvinyl acetate, polyvinylpyrrolidone and polyacrylic acid, can also be suitable.
- the content of water- or alkali-soluble polymers in the activator granules before spraying with the low-melting organic compound is preferably between 0.5 and 8% by weight, in particular between 2 and 5% by weight.
- activator granules are used for the agents according to the invention, which are produced by agglomeration of finely divided activator material with hooves of water- or alkali-soluble polymers in a weight ratio greater than 90:10.
- the weight ratio of activator material to polymers is preferably between 91: 9 and 99: 1.
- Activator granules which contain more than 90% by weight of activator and between 2 and 5% by weight of polymer before spraying are particularly preferred hold.
- the activator granules used according to the invention are usually largely free of hydratable salts, ie they contain less than 4% by weight, preferably less than 2% by weight.
- organic compounds from the group of nonionic surfactants long-chain alcohols, polyethylene glycols, fatty acids, waxes and mixtures of these compounds.
- the long-chain alcohols are preferably fatty alcohols with 14 to 20 C atoms and linear 1,2-diols with a similar chain length.
- suitable individual compounds from the aforementioned group are palmitic acid, stearic acid, tetradecanol-1, decanediol-1,2, beeswax and carnauba wax.
- nonionic surfactants preference is given to using nonionic surfactants, and of these in turn the addition products of long-chain alcohols and ethylene oxide (E0) and, if appropriate, propylene oxide (PO) are particularly preferred.
- these addition products are tallow alcohol +5 E0 and tallow alcohol + 40 E0.
- the organic compounds melting between 30 and 100 ° C. can contain dissolved other organic compounds, for example anionic surfactants such as alkylbenzenesulfonate or alkyl sulfate.
- the organic compounds melting between 30 ° C and 100 ° C are sprayed in liquid form on the prefabricated activator granules. Their proportion is such that the amount of these compounds, based on the granular activator treated in this way, is 1 to 25% by weight, preferably 2 to 10% by weight. The amount can be selected regardless of whether or not it creates a closed coating on the original granules, since a closed coating does not appear to be necessary for the desired success.
- the prefabricated activator granules during the spraying on of the organic melting between 30 and 100 ° C see connections are moved gently. Gentle should mean here that no comminution of the particles of the prefabricated granulate should occur.
- the parameters of the process step in particular the selection of the device type, the mechanics and the residence time of the granules, must be aligned with this goal. Suitable devices in which spraying can take place are, in particular, devices in which the granules are moved mechanically or pneumatically.
- the dwell time in these devices is kept as short as possible and is usually not more than 10 minutes, preferably between 1 and 4 minutes. Post-mixing after the spraying process has ended is generally avoided, and the devices are also emptied as quickly and gently as possible. If mixing units are used, it is also possible to add the inorganic per-compounds and the carrier material and, if appropriate, further constituents of the agent in the same mixer after spraying the granules immediately after spraying the activator granules or after Compliance with a certain cooling period. In the other case, the production of the finished agent is carried out in a downstream mixing unit. In order to avoid the formation of dust, work is generally carried out here with low energy input.
- suitable solid per-compounds which release hydrogen peroxide when dissolved in water are suitable as inorganic per-compounds.
- inorganic compounds are sodium perborate tetrahydrate, sodium perborate onohydrate, sodium percarbonate and urea perhydrate.
- the per compounds can be used in pure form or, usually, in technical quality, with stabilizers frequently being added, particularly in the case of sodium percarbonate, which are intended to delay the decomposition of the per compound during storage.
- the content of anorga- African per compounds in the agents according to the invention are preferably between about 30 and about 70% by weight, preferably between 40 and 60% by weight. It depends, among other things, on the active oxygen content of the selected peroxy compound. 40 to 50% by weight of perborate monohydrate is particularly preferred.
- the agents according to the invention contain, as the third major component, an inert, non-hydrating and non-hygroscopic filler material, which is to be referred to here as carrier material.
- carrier material This material has various auxiliary tasks, such as, for example, improving the flowability, the desensitization of the mixture of per compound and organic material and, if appropriate, the adjustment of the suitable pH after dissolving in water.
- Suitable carrier materials are, for example, urea, sodium aluminum silicate (zeolite) and sodium hydrogen carbonate. Sodium hydrogen carbonate is particularly preferred in the context of the present invention.
- the amounts of carrier material in the agents according to the invention are preferably between about 10 and about 40% by weight, in particular between 20 and 30% by weight.
- the agents according to the invention can contain further auxiliaries and additives if this is necessary in the individual case.
- auxiliaries are substances for improving the flushing-in behavior when the agents are flushed into the water flow via an automatic metering device, stabilizers for reducing the peroxide decomposition during storage, additives for dust binding, and surfactants for improving the wetting effect.
- Substances to improve the induction behavior are optionally used in amounts between 0.5 and 2%, based on the finished agent. Calcium stearate is preferably used for this purpose.
- Preferred peroxide stabilizers are polyphosphonic acids and their salts, for example the sodium salts of hydroxyethane diphosphonic acid, ethylene diamine tetramethylene phosphonic acid and diethylene triamine penta ethylene phosphonic acid, and gluconic acid and its salts.
- Dust-binding agents are usually used after mixing together all components of the agent also applied in a spray process.
- Nonionic surfactants which are liquid at room temperature are preferably used here, but other known dust binders may also be suitable for this purpose.
- 0.5 to 5% by weight, based on the total composition, of nonionic surfactants is preferably applied.
- the agents according to the invention contain inorganic per-compounds, activator and carrier material in an optimally coordinated form, so that when they are dissolved in water, bleaching and disinfection solutions can be prepared in ready-to-use form.
- the solutions can be used for bleaching and disinfecting a wide variety of objects.
- they are preferably used for bleaching and disinfecting textile materials, in particular during a washing process.
- the detergents are metered into the wash liquor in sufficient quantities by hand or automatically, and because of the stability of the detergents according to the invention against segregation, an overdose is not necessary for safety reasons. This quality of the agents therefore has a particularly advantageous effect in commercial use in large laundry, for example when washing hospital laundry.
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Detergent Compositions (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
- Apparatus For Disinfection Or Sterilisation (AREA)
Description
Claims
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4316481 | 1993-05-17 | ||
| DE4316481A DE4316481A1 (de) | 1993-05-17 | 1993-05-17 | Bleich- und Desinfektionsmittel |
| PCT/EP1994/001486 WO1994026862A1 (de) | 1993-05-17 | 1994-05-09 | Bleich- und desinfektionsmittel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0699231A1 true EP0699231A1 (de) | 1996-03-06 |
| EP0699231B1 EP0699231B1 (de) | 1997-04-23 |
Family
ID=6488297
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP94917599A Expired - Lifetime EP0699231B1 (de) | 1993-05-17 | 1994-05-09 | Bleich- und desinfektionsmittel |
Country Status (7)
| Country | Link |
|---|---|
| EP (1) | EP0699231B1 (de) |
| JP (1) | JPH08510767A (de) |
| AT (1) | ATE152167T1 (de) |
| DE (2) | DE4316481A1 (de) |
| DK (1) | DK0699231T3 (de) |
| ES (1) | ES2100717T3 (de) |
| WO (1) | WO1994026862A1 (de) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1544061A2 (de) | 2003-12-15 | 2005-06-22 | iSi Airbag GmbH | Gasgenerator |
| EP1702815A2 (de) | 2002-02-14 | 2006-09-20 | iSi Airbag GmbH | Kaltgasgenerator |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19641708A1 (de) | 1996-10-10 | 1998-04-16 | Clariant Gmbh | Verfahren zur Herstellung eines gecoateten Bleichaktivatorgranulats |
| DE19740671A1 (de) * | 1997-09-16 | 1999-03-18 | Clariant Gmbh | Bleichaktivator-Granulate |
| DE19740669A1 (de) * | 1997-09-16 | 1999-03-18 | Clariant Gmbh | Gecoatete Ammoniumnitril-Bleichaktivatorgranulate |
| US6245729B1 (en) | 1999-07-27 | 2001-06-12 | Ecolab, Inc. | Peracid forming system, peracid forming composition, and methods for making and using |
| DE10214750A1 (de) * | 2002-04-03 | 2003-10-16 | Ecolab Gmbh & Co Ohg | Instrumentendesinfektion |
| US7709437B2 (en) | 2006-04-27 | 2010-05-04 | Oci Chemical Corp. | Co-granulates of bleach activator-peroxide compounds |
| US20100075883A1 (en) * | 2008-09-24 | 2010-03-25 | Ecolab Inc. | Granular cleaning and disinfecting composition |
| EP2692844A1 (de) * | 2012-08-01 | 2014-02-05 | Chemische Fabrik Dr. Weigert GmbH & Co KG | Reinigungs- und Desinfektionsmittel für medizinische Instrumente |
| EP3181678A1 (de) * | 2015-12-17 | 2017-06-21 | The Procter and Gamble Company | Verfahren zur herstellung eines waschmittelpulvers |
| EP3181676B1 (de) | 2015-12-17 | 2019-03-13 | The Procter and Gamble Company | Spülmittelzusammensetzung für automatisches geschirrspülen |
| EP3181675B2 (de) | 2015-12-17 | 2022-12-07 | The Procter & Gamble Company | Spülmittelzusammensetzung für automatisches geschirrspülen |
| EP3181671B1 (de) | 2015-12-17 | 2024-07-10 | The Procter & Gamble Company | Spülmittelzusammensetzung für automatisches geschirrspülen |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2365269A1 (de) * | 1973-12-31 | 1975-07-10 | Henkel & Cie Gmbh | Lagerbestaendiger, leichtloeslicher waschmittelzusatz und verfahren zu dessen herstellung |
| EP0053859B1 (de) * | 1980-12-09 | 1985-04-03 | Unilever N.V. | Bleichmittelaktivatorgranulate |
| DE3128336A1 (de) * | 1981-07-17 | 1983-01-27 | Henkel KGaA, 4000 Düsseldorf | "verfahren zur herstellung umhuellter koerniger bleichaktivatoren" |
| US5458801A (en) * | 1991-09-27 | 1995-10-17 | Kao Corporation | Process for producing granular bleach activator composition and granular bleach activator composition |
-
1993
- 1993-05-17 DE DE4316481A patent/DE4316481A1/de not_active Withdrawn
-
1994
- 1994-05-09 WO PCT/EP1994/001486 patent/WO1994026862A1/de not_active Ceased
- 1994-05-09 DK DK94917599.6T patent/DK0699231T3/da active
- 1994-05-09 JP JP6524940A patent/JPH08510767A/ja active Pending
- 1994-05-09 EP EP94917599A patent/EP0699231B1/de not_active Expired - Lifetime
- 1994-05-09 ES ES94917599T patent/ES2100717T3/es not_active Expired - Lifetime
- 1994-05-09 AT AT94917599T patent/ATE152167T1/de not_active IP Right Cessation
- 1994-05-09 DE DE59402541T patent/DE59402541D1/de not_active Expired - Fee Related
Non-Patent Citations (1)
| Title |
|---|
| See references of WO9426862A1 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1702815A2 (de) | 2002-02-14 | 2006-09-20 | iSi Airbag GmbH | Kaltgasgenerator |
| EP1544061A2 (de) | 2003-12-15 | 2005-06-22 | iSi Airbag GmbH | Gasgenerator |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH08510767A (ja) | 1996-11-12 |
| EP0699231B1 (de) | 1997-04-23 |
| ATE152167T1 (de) | 1997-05-15 |
| WO1994026862A1 (de) | 1994-11-24 |
| DE59402541D1 (de) | 1997-05-28 |
| DE4316481A1 (de) | 1994-11-24 |
| DK0699231T3 (da) | 1997-11-03 |
| ES2100717T3 (es) | 1997-06-16 |
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